Sawing-machine.



S. E. WALLING.

SAWING MACHINE.

APPLICATION man mman. |914..

C Attorneys S. E. WALUNG.

SAWING MACHINE.

APPLICATION FILED APiLso, 1914.

Patented Aug. 10, 1915.

Attorneys l f ED sTATEs PATENT oEEIoE.l

SAWING-MACHINE.

Specification of Letters Patent.

`Patented Aug. 10, 1915.

Application filed April 30. 1914. Serial No. 835,485.

To all whom t mag/concern:

Be it known that I, SAMUEL E. VALLING, a citizen of the United States.residing at Bellingham, in the county of lVhatcom and State ofWashington, have invented a new and useful Sawing-Machine, of which the.following is a specilication.

This invention relates to drag saws, one of its objects being to providea compact and light machine of this character which can be easilytransported by one or more persons, can be set up quickly, and will notreadily get out of order.

lith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings the preferred form of the invention hasbeen shown. y

In said drawings, Figure 1 is a side elevation of the machine the samebeing shown connected to a log to be cut. Fig. 2 is a plan view of themachine. Fig. 3 is an end view of the guide segment and the slideengaging the same. Fig. 4 is a perspective view of the butt end of thesaw and of the adjacent portion of the pitman, the links employed forcausing the saw. to rock, being also shown. Fig. 5 is an enlargedsection on line A-B Fig. 2. Fig. 6 is a detail view showing the meansfor fastening the saw in raised or inactive position.

Referring to the figures by characters of reference 1 designates themainv beam of the machine,'the same being parallel with and extendedforwardly beyond a side beam 2, and both of these beams being providedwith brackets 3 detachably engaging an axle 4 supported by wheels- 5.

Connected to the forward end of the beam 1 is ay yoke 6 in which a spike7 is slidably mounted, there being a spring 8 interposed between theyoke 6 and the head of the spike for the purpose of holding the spikenormally elevated relative to the yoke. A coly lar 9 may be formed on orsecured to the that when the yoke 6 is placed above a log L, the spike 7can be driven into the log without jarring the beam`1 to an undesirableextent, the spring 8 constituting a cushioning means for relieving thebeam from the force of the blow. As long as the spike 7 is in engagementwith the log L, the machine will be held in proper position to cut thelog.

i Handles 10 are extended from the rear ends of the beams 1 and 2 andthe front end of beam 2 is connected to beam 1 by a cross strip 11` Atool box 12 or the like may be .arranged in front of the cross strip orbeam 11.

Eye bolts 13 are connected to the beams 1 and 2 and receive trunnions 14extending laterally from the rear end of a triangular frame 15, thisframe being provided with a forwardly extending obliquely disposed arm16 the free end of which has a guide block 17 depending therefrom andformed with a groove 18 adapted to receive the upper end portion of thesaw hereinafter described. The frame 15 is mountedl to swing freely, aswill be apparent by referring to Fig. 1.

Secured to one side of the beam 1 is an arcuate guide bar 19 made up ofan angle strip the inwardly extending iange of which is offset as at 20so as to lie flat against the outer side of beam 1. This offset portionis bolted or otherwise secured to the beam. The bar 19 constitutes aguide for a slide made up of nested angle strips 21 which are boltedtogether and have their side flanges spaced apart a suiicient distanceto receive between them a portion of the guide 19. Rods 22 are boltedorotherwise secured to the strips 21 making up the slide andA the rearends of these rods converge toward each other and are secured to blocks23 pivotally mounted on a shaft 24 which is journaled in the beams land2. The rods 22 are `held apart-not only by the strips 21 but also by a.cross strip- 25, and those portions of the rods between strip 25 andstrips 21 constitute a track on which is slidably mounted a cross head26. -A gear 2 7 is mounted for rotation on the shaft 24 and has a wristpin 28 adjustably mounted thereon and engaging a pitman 29. This pitman29 engages another wrist pin 30 outstanding from the cross head 26.Another wrist pin `31 is eX- tended from the cross head 26 and ispivotally engaged by a block 32, there being a link 33 engaging theouter ends of the wrist 34 is extended and overhangs i the pitinan 29,and a web 35 is extended up- `wardly from the pitman. A link 3G isadapted to be adjustably connected to the web 35 and to the tongue 34. Asaw blade 3T is iixedly connected to the block 32 and its upper edgeseated in the groove 18 in block 17.

It will be apparent from the foregoing that when gear 27 is rotated,pitman 29 will reciprocate the cross head 2G upon the rods 22, thusproducing a back and forth movement of the saw blade 37.- At the sametime. as the pitman 29 swings upon the wrist pin 30, the link 36 willpush and pull upon the tongue 34, thus setting up a rocking motion ofthesaw 37 as the said saw is reciprocated. This rocking motion is verydesirable in that it results in clearing the teeth of sawdust andrenders the saw more efficient in operation.

During the reciprocation of the saw 37 it will be guided by the block 17and while the saw is resting on the log L, it will feed downwardly bygravity into the log, this downward movement being permitted in view ofthe fact that the slide made up of strips 21 is free to travel along theguide 19 and to even project downwardly beyond the lower end of theguide.

For the purpose of actuating the saw, a motor 38 is mounted between thebeams 1 and 2 and drives a shaft 39 to which is secured a iy wheel 40,this fly wheel having a flat clutch face 41. A fixed cam 42 is arrangedabout the shaft 39 and cooperating with this cam is a movable cam 43adapted to be actuated by a lever 44 or in any other suitable manner.Rods 45 are slidably mounted within the hub of the wheel 40 and areconnected at one end by a disk 46 and at their other end by a disk 47.Disk 46 bears against a roller bearing 48 carried by a disk 49 fittedagainst the movable cam 4.3, while disk 47 bears against a rollerbearing 50 interposed between disk 47 and another disk 51. These twodisks 47 and 51 are housed within a tubular hub 52 extending outwardlyfrom a disklike friction clutch member there being a pin 54 extendingaxially from the shaft 39. On this pin is mounted a 'sprinfr 55 whichbears against the outer end ofthe hub 52 and thus operates to hold theclutch member normally pressed against the clutch face 41 and also tohold the rods 45 normally shifted inwardly so as thus to maintain thecam members 42 and 53 in engagement with each other as shown in Fig. Agear 5G rotates within the hub 52 and meshes with gear 27.

It will be understood that under normal conditions shaft 35). whendriven by the motor, will cause the clutch member to rotate with thewheel 40and gear 5G to drive gear 27. However, should it be desired tostop the actuation of the gear 5G and gear 27, it merely becomesnecessary to rotate cam 43 whereupon the beveled face 57 of the cam willride upon the beveled face 58 of cam 42, thus causing rods 45 to shiftlongitudinally within the rotating hub of wheel 40 and push the hub 52and gear 56 laterally, thus disengaging the clutch member 53 from theclutch member 41.

By providing the wheels 5, the machine can be easily transported fromplace to place and, if desired, these wheels and the axle 4 can beremoved while the machine is in use.

By adjustably mounting the links 3G, the degree of oscillation of thesaw blade can be varied and by adjustably connecting the pitman 29 tothe gear 27. the amount of movement of the saw during its reciprocationcan be varied.

As heretofore stated, when the machine is not used for sawing purposes,it can be' used for various other purposes. For eX- ample` the pitman 29can be disconnected from the wrist pin 30 and from the links 36 and canbe attached to any other machine to be driven or` if preferred, thepitman can be disconnected from the gear 27 and said gear connected inany suitable manner to machinery of different kinds.

There a hydro-carbon engine is used, as shown in the drawings, a fueltank 58 is preferably supported between the beams 1 and 2.

In order that the guide rods 22, and the slide 21 may be supported inelevated position with the saw 37 raised. whether or not the saw is inmotion, the slide 21 is provided with an opening 59 while a series ofangular notches G0 are formed in the guide bar 19. One of the rods 22 isextended through the slide 21 and has a terminal head G1 on which asleeve 62 is slidably mounted. The inner end of this sleeve is slidablymounted on the projecting portion of the rod 22 and constitutes thebearing for one end of a coiled spring 63, the other end of the springbearing against the head 61. A, stud or projection 64 is carried by theinner end of sleeve 62 and normally projects into the opening 59 sothat, when said opening is brought into register with any one of thenotches 60. the said stud 64 will be shifted into the notch 60 toA thushold the slide 21 against downward movement along the guide 19. However,when the stud 64 is brought to a position below the lowermost notch (30.the slide and the saw 37 will be free to gravitate in the mannerhereinbefore described. For the purpose of withdrawing the latch fromengagement with the guide 19. it is merely necessary to grasp the sleeve(l2 and pull itoutwardly against the spring (33. By means of this latchthe slide 21 can be supported in an elevated position7 thus holding thesaw 3T raised whether said saw is in motion or at rest.

Especial importance is attached to the particular means shown in Fig. 5whereby the engine can be caused to run free whenever desired andwherebv the parts are free to slip should the saw become jammed ordisarranged. It is also to be understood that the connection shown inFig. 4 can be varied so as to be located under the pitman instead ofabove it, if desired.l

lVhat is claimed is A wood sawing machine including an angularlyadjustable track, a cross head thereon, a pitman pivotally connected tothe cross head, means for actuating the pitman', a link attached to thesaw and to the pitman at its point of connection to the cross head, anda shorter link adjustably connected to the saw back of its point ofconnection with the longer link and adjustably connected to the pitmanat a point other than that of its connection with the longer link.

In testimony that I claim the foregoing as my o\vn,-I have heretoaffixed my signature in the presence of two Witnesses.

SAMUEL E. VALLING. lVitnesses:

CLARENCE B. PECK, E. P. WALLING.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

